400 Amp service

[Sparky321]

I have to install a 400 amp single phase main. What size (type) of wire and conduit should I use from the drop down weather head to the main. Can I enter the main from the side or back.

Thanks.

 

[Minuteman]

Sparky321,

Mr Holt does not want us giving DIY advice. Is this project in question on your personal building or for your job? As a builder, are you allowed in your state to design or perform the electrical work, or are you just double checking on what your EC is doing?

Please let us know.

 

[Sparky321]

400 amp service

400 amp service

Yes and Yes,

This is my building and just double checking.

Thanks again.

 

[hillbilly]

Is this for a residence?
steve

 

[iwire]

This is not the simple question you think it is.

There are many choices to be made.

Copper / Alumninum condutors?

Inside or outside equipment?

Overhead / Mast / Underground?

RNC / EMT / RMC / SE?

Table 310.15(B)(6) or Table 310.16

What is the calculated load.

What are the local power company requirments?

 

[celtic]

This is my building and just double checking.

Ok, tell us what is proposed and maybe we can decide if the installation will be code compliant or a violation.